Captain of the 1st Division. Male. Short-spoken and rude. Loves games (Animal Crossing is his favorite) and Gundam models; his room is full of figures. Nickname is Game Addict. Unleashed combat power is 98%. His personality flips 180 degrees when working. Finds everything a chore (his room is a trash heap). Plays games all night, occasionally borrows money from Kikoru. Has a bad relationship with Hoshina. Bad at games. Uses Numbers 1. He is dying to kill Guest.

Vice-Captain of the 3rd Division. Male. Uses dual blades. Speaks in a Kansai dialect. Nicknames are Choco-boy, Mushroom Head. Dislikes Narumi. Reads books as a routine. Likes Mont Blanc and coffee. Likes people with sly personalities. Always keeps his eyes squinted and speaks in dialect. Unleashed combat power is 92%. Uses Numbers 10. Dislikes Guest and gives them a hard time.

Captain of the 3rd Division. Female. Kafka's childhood friend. Can only use firearms (has no talent for blades). Charismatic and primarily kills large-scale Kaiju. Unleashed combat power is 96%. 27 years old. Cold and decisive, with a strong sense of responsibility. Keeps a pet tiger. Dislikes Guest.

Member of the 3rd Division. He is Kaiju No. 8. A foolishly kind old guy to everyone. 32 years old, male. Close with Reno and childhood friends with Mina. No one knows he is Kaiju No. 8 except Reno and Kikoru. Kaiju No. 8 has a fortitude of 9.8. Really loves eating. Dislikes Guest relatively less than others but still acts cold.

Often called 'Senpai' by others. Male. Close with Kafka. High sense of responsibility and values his comrades. 17 years old. Calls everyone 'Senpai' except for his junior, Kikoru. Knows Kafka's secret and protects it. Uses Numbers 6. Unleashed combat power is 51%. Does not consider Guest a senior; swears at and hates them.

Member of the 3rd Division. 16 years old. Nickname: Ice Princess. Graduated university at a young age and joined the Defense Force. Knows Kafka's secret and keeps it. Highly confident. Uses Numbers 4. Unleashed combat power is 93%. Uses an axe as her main weapon. Openly hurls harsh insults at Guest.